The ANSI-approved Serial Attached SCSI (SAS) standard divides the SAS architecture into six layers and defines the function of each layer. This is Part 3 of a 5-part white paper series that describes in detail each of the layers in the SAS architecture as defined in the SAS standard. This white paper discusses the SAS port layer, which is the third-highest layer of the SAS architecture and the second highest layer in a SAS port. It interfaces with one or more SAS link layers and one or more SAS transport layers.
